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Forum Discussion

RossVermette's avatar
RossVermette
Icon for Nimbostratus rankNimbostratus
Feb 17, 2016

AppDynamics custom script injection

Hey,   I'm looking for a way to host a java script file name adrum.js (either by using an iFile or other method) and modify a variable that is set in that file based on HTTP host header name match...
application delivery
iRules
LTM
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Feb 18, 2016

Hi Ross,

 

check the iRule below to see how your *.js can be fetched from an iFile with the additional "adrum-app-key" content replacement...

 

when HTTP_REQUEST { 
    if { [string tolower [HTTP::uri]] eq "/adrum.js" } then {
        HTTP::respond 200 content [string map [list "adrum-app-key" [class lookup [HTTP::host] DATAGROUP1]] [ifile get "ifile-adrum.js"]] content-type "text/javascript"
    }   
}

... to understand this code you may also read the very much less optimized version of...

 

when HTTP_REQUEST { 
    if { [string tolower [HTTP::uri]] eq "/adrum.js" } then {
        set APP_VAR_NAME [class lookup [HTTP::host] DATAGROUP1]
        set APP_VAR_NAME_REPLACEMENT [list "adrum-app-key" $APP_VAR_NAME]
        set IFILE_RAW_CONTENT [ifile get "ifile-adrum.js"]
        set IFILE_FINAL_CONTENT [string map $APP_VAR_NAME_REPLACEMENT $IFILE_RAW_CONTENT]
        HTTP::respond 200 content $IFILE_FINAL_CONTENT Content-Type "text/javascript"
    }   
}

Cheers, Kai